Volklingen: One man was killed, and four others seriously injured in a powerful explosion inside a pedestrian tunnel in Volklingen, western Germany. German police reported that among the injured, two men are in life-threatening condition.
According to Qatar News Agency, investigators believe the blast was caused by human action, though they have not provided further details. A security cordon has been imposed around the site as authorities continue efforts to determine the cause.
Volklingen, with a population of around 40,000, lies near the French border.